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- /* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
- /*
- * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
- #ifndef __GTK_CURVE_H__
- #define __GTK_CURVE_H__
-
-
- #include <gdk/gdk.h>
- #include <gtk/gtkdrawingarea.h>
-
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
-
-
- #define GTK_TYPE_CURVE (gtk_curve_get_type ())
- #define GTK_CURVE(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_CURVE, GtkCurve))
- #define GTK_CURVE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_CURVE, GtkCurveClass))
- #define GTK_IS_CURVE(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_CURVE))
- #define GTK_IS_CURVE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CURVE))
-
-
- typedef struct _GtkCurve GtkCurve;
- typedef struct _GtkCurveClass GtkCurveClass;
-
-
- struct _GtkCurve
- {
- GtkDrawingArea graph;
-
- gint cursor_type;
- gfloat min_x;
- gfloat max_x;
- gfloat min_y;
- gfloat max_y;
- GdkPixmap *pixmap;
- GtkCurveType curve_type;
- gint height; /* (cached) graph height in pixels */
- gint grab_point; /* point currently grabbed */
- gint last;
-
- /* (cached) curve points: */
- gint num_points;
- GdkPoint *point;
-
- /* control points: */
- gint num_ctlpoints; /* number of control points */
- gfloat (*ctlpoint)[2]; /* array of control points */
- };
-
- struct _GtkCurveClass
- {
- GtkDrawingAreaClass parent_class;
-
- void (* curve_type_changed) (GtkCurve *curve);
- };
-
-
- GtkType gtk_curve_get_type (void);
- GtkWidget* gtk_curve_new (void);
- void gtk_curve_reset (GtkCurve *curve);
- void gtk_curve_set_gamma (GtkCurve *curve, gfloat gamma);
- void gtk_curve_set_range (GtkCurve *curve,
- gfloat min_x, gfloat max_x,
- gfloat min_y, gfloat max_y);
- void gtk_curve_get_vector (GtkCurve *curve,
- int veclen, gfloat vector[]);
- void gtk_curve_set_vector (GtkCurve *curve,
- int veclen, gfloat vector[]);
- void gtk_curve_set_curve_type (GtkCurve *curve, GtkCurveType type);
-
-
- #ifdef __cplusplus
- }
- #endif /* __cplusplus */
-
-
- #endif /* __GTK_CURVE_H__ */
-